In this book, David Benatar argues that every person is severely harmed by being brought into existence, and that in bringing any person into existence one impermissibly harms that person. His conclusion is not merely that by bringing a person into existence, one harms him. That claim is compatible with the claim that by bringing a person into existence, one also greatly benefits him, and even with the claim that one never impermissibly harms someone by bringing him into existence. His conclusion is much more radical.